According to Land Excavation and Reclamation Act B.E. 2543, competent local officers have authority to order a land owner to cease excavation if they find that such action caused or may cause damage to properties of other persons or to the environment. The Court determined that the conduct of excavation by the Plaintiffs caused damage to shrimp and fish farming and to the consumtion and utilisation of freshwater resources. Although the Plaintiffs proposed and undertook preventive and remedial measures and the law provided legal measures for damages and compensation, such measures cannot remedy irreversible damage to the environment. The Court therefore found that the exercise of the Defendent‘s discretionary power to order the Plaintiffs to cease excavation was lawful.